Fastener for the meeting-rails of sashes



(No Model.) 2 Sheets-Sheet 1.

G. M. GRISWOLD. FASTENER FOR THE MEETING RAILS 0F SASHES.

No. 403.102. Patented May 14, 188 9.

N PETERS. PlmhrL'nhngmpher. Washingwn. n, c.

D L m S I D" G M G FASTENER FOR THE MEETING RAILS OF SASHES.

No 403,102. Patented May 14, 1889.

UNITED STATES PATENT OFFICE.

GEORGE M. GRISWVOLD, OF NEW HAVEN, CONNECTICUT.

FASTENER FOR THE MEETING- RAILS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 403,102, dated May 14, 1889.

Application filed February 16,1889- Serial No. 300,147. (No model.)

To all whom if) may concern.-

Be it known that I, GEORGE M. GRISWOLD, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Sash-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in looks for the meetingrails of sashes, and has for its objects to provlde a fastening which shall be simple in its construction and cheap to manufacture,which shall lock automatically upon the closing of the window, and which, when locked, shall hold the sashes very firmly together.

With these ends in view my invention consists in the construction and combination of elements hereinafter set forth, and particularly in the employment of the cylindric or spherical wedging element, whereby the post 1izs held within the housing as against retrac- In order that those .skilled in the art to whlch my invention appertains may fully understand its construction and operation, Iwill describe the same in detail, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a perspective showing one form of my lock in position upon the meeting-rails of two closed sashes; Fig. 2, a section transverse of the rails and central through the lock, the latter being shown with its parts in their locked position; Fig. 3, a similar view, the parts being shown as unlocked; Fig. 4, a detail elevation of the wedge-roll and the frame in which it is mounted Fig. 5, a bottom plan of the housing; Fig. 6,. a perspective of a modified form of lock in which balls are used for the wedging element in place of the roll; Fig. 7, a section transverse to the sash-rails and taken at line a: 00 of Fig. 8; Fig. 8, a horizontal section at the line y y of Fig. 7; Fig. 9, a detail vertical section on line TT of Fig. 8, and Fig. 10 a detail plan view of the disengaging-lever.

Like reference-numerals denote the same parts in all the figures of the drawings.

Referring particularly to Sheet 1, 1 is a housing adapted to be mounted upon the top rail of the bottom sash by means of screws or similar fastenings. This housing overhangs the inner edge of the rail upon which it is secured, and is interiorly recessed, as at 2. The front wall of the recess is substantially vertical, and the rear wall is inclined backward relative to the front wall. This recess opens at its bottom end through that portion of the housing which overhangs the rail, as seen at the sectional Figs. 2 and 3. The housing is pierced into the recess at the top for the reception of the threaded upper extremity, 3, of a shank, 4, which is formed on or attached to an open frame, 5, said frame having a pair of outwardly-bent lips, 6, upon its face. A spiral spring, 7, surrounds the shank.

8 is a short roll which lies looselyin the open central portion of the frame, but is retained therein when in assembled position, as seen at the sectional figures, by the lips just referred to.

9 is a knob mounted upon the top of the housing and secured to the threaded end of the shank 3, which projects outward through the top of said housing.

10 is a post formed or secured upon a base, 11, mounted upon the inner rail Said post projects upward in the line with and sothat it ma'yenter the recess in the housing, and said post'is slightly greater in thickness from front to rear'than'the "distance between the outer face of the wedge-roll and the vertical inner wall of the recess.

Referring now more particularly to Figs. 6, 7, 8, 9, and 10, the housing in place of the wedgeshaped recess has a vertical opening exte ing entirely through itfrom top to bottom, and this opening is adapted to admit the post 10, which in this look is preferentially round in cross-section, although it may be of other shape. In place of the open recess, this form of lock has one or more apertures, 12, which extend downward from the top of the housing at an angle to the post-opening and open into the same. Each of these apertures contains a ball, 13, normally impelled downward so as to project slightly into the post-opening by a spiral spring, 14, retained in place by a cap or plug, 15.

Extending inward from the back of the housing to the point where the ball-apertures meet the postopening is a recess or way, 16, in which is arranged a small pivoted lever, 17, whose inner end projects under and is adapted to raise the balls in their recesses against the spiral springs by which they are normally impelled downward into engagement with the post.

The operation of the two forms of lock hereinbefore described is, generally speaking, the same, the difference being merely of constiuction. As the lower sash is closed, the post enters the housing from beneath and crowds past the roll or ball, which yields upwardly to let it pass. Any attempt, however, to withdraw the post downward out of the housing is resisted by the lateral wedging of the roll or ball against the post on one side and the metal of the housing upon the other side. The release of the post is accomplished in the form employing the roll by lifting the knob, which, against the downward pressure of the spiral spring, raises the frame and roll to a point where therecess is wider than the diameter of said roll, when the post may be withdrawn with entire freedom. In the construction employing the balls they are withdrawn into their separate apertures and out of engagement with the post by means of the pivoted lever 17.

By using a post of considerable length, as shown at Fig. 7, the window may be raised slightly from the bottom or lowered slightly from the top, or both, for the admission of air; but the engagement of the post with the locking device within the housing will effectually resist any attempt to op en the window farther.

In my invention I do not wish to be confined to the details of construction which I have herein shown and described, since the gist of my invention rests in the co1nbination, with avertically-disposed post, of the re cessed housing and the wedge-roll within said housing, the line of movement of said roll being at an angle to the line of movement of the post.

I claim-- 1. In a lock for the meeting-rails of sashes, the combination, with a vertically-projecting post fast upon one sash, of a housing upon the rail of the other sash, said housing having an opening therein in line with said post, and a roll arranged within said housing and adapted to engage the post, substantially as set forth.

2. In a lock for the meeting-rails of sashes, the combination, with the stationary and vertically-proj ecting post arranged upon the rear rail, of a housing mounted upon the outer rail, a vertical opening in said housing in the same plane with and adapted to admit the post, a rolling wedging element mounted within said housing and having a movement therein at an angle to the line of entrance of the post, and an operating-lever or the like engaging said wedging element and accessible from without the housing, whereby the wedging element may be raised upward and backward out of its engagement with the post, substantially as specified.

3. The combination, with the vertically-disposed post, of. the recessed housing, into and out of which. said post is adapted to slide, a roll mounted within said housing and adapted when in its normal position to engage the post upon one side and the wall of the housing upon the other side, a spring whereby said roll is impelled downward into engagement with said post, and means, as a knob or lever, arranged without the housing, whereby the roll may be lifted upward and backward out of engagement with the post, substantially as specified.

4. In a lock for the meeting-rails of sashes, the combination, with the post secured to the rear rail and projecting upward vertically therefrom, of the housing mounted upon the outer rail and having a recess for the accommodation of the post, said recess increasing in cross-section from. bottom to top, a wedgeroll arranged within said recess and lying against the inside wall thereof, and a springactuated frame arranged about the roll, and whereby the latter may be raised and lowered in the recess, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE M. GRIS\V(')LI).

\Vitnesses:

S. II. HUBBARD, C. G. OooKn. 

